Road-working machine.



N. S. MONROE. ROAD WORKING MACHINE. APPLICATION FILED MARJZ. 1914 Patented Mar. 9, 1915.

q/Vi/Mwomw THE NORRIS PETERS 60.. PHOTO-LITHO.. WASHINGTON. D. c,

u 1H0 M3 crowned and ROAD-WORKING, MACHINE. Specification ofLetters Eatent.

1,131,409. Patented Mar. 9, 1915..

Application filed March 12, 1914. Serial N 0. 824,162.

'To allwiiz'om itmay concern.

that no limitation is necessarily made to the Be it known precise structural details therein exhibited, but that changes, alterations and modifications within the scope of the claims may be resorted to when desired.

and useful Improvements in ROtCl-lVOIkll1 In the drawings l igure l is a side elevaachmes, of which he following is a spec1- tion of a road machine to WlllCll the inven cation. tion has b chine, with dotted lines showing adjustment of the smoothing and compacting device. Fig. 3 is' a perspective detail view showing the rearward end of one of the frame bars of the machine and a washer applied thereto. F ig. 4 is a perspective detail view showing the forward enu of one of the side bars or members carrying the smoothing and compacting element. Fig. 5 is a detail side view illustrating a tion.

Corresponding parts in the several figures are denoted by like characters of reference. e frame of the machine to which the present invention is applied is supported on wheels 15. and said wardlv divergent frame bars 16. Rear- Wardlv convergent scraper bars 17 are admeans including supporting and hoisting tackle. substantially as is not herein claimed and described in bars, said smoothing and compacting means eing of a width to cover a swath or track considerably in excess of the distance between the rear ends of the scraper bars, 'so that the smoothing and compacting action 1 be applied to a considerable portion of the width of the road which will thus be smoothed in a very perfect ing and packing element with the frame of t e machine in such a manner that it will includes a smoothnot be susceptible of lateral movement exmg and compacting element which has been near the rear ends of said side bars of bolts 22 for the reception of which each supporting bar 19 is provided with a plurahty of apertures 23, as clearly 86611111 Fig. 4 of the drawings. It will thus be seen that the accompanying illustrated a simple and t 1e invention, it being,

drawings has been preferred form of owever, understood m'odificacept by positive adjustment but means being shown as consisting of a channel bar 18 provided for the vertical adjustment of'said whic is supported and carried by a pair of smoothing an packing element to detelangle bars 19 with which it is securely conmine the force with which said element shall necte in any convenient manner, braces 20 by means with the smoothing and adjustment may be effected to present the smoothing and packing element 18 obliquely with respect to the frame of the machine, as clearly seen in dotted lines in Fig. 2 of .the drawings. To enable such adjustment to be conveniently made, it may be found desirable to use convex washers 9A to space the forward ends of the supporting bars 19 outwardly from the rear ends of the frame bars 16, as shown.

For the purpose of effecting vertical adjustment of the smoothing and packing element, the latter is connected by a flexible connection 25 passing over a guide element, such as a pulley 26 supported on the frame of the machine with a drum 27 on a shaft 28 operable by means of a hand wheel 29. The flexible element may include a rod 30 which is less expensive than a chain and less liable to become tangled. By this simple mechanism the smoothing and packing element may be raised from the ground, as seen in dotted lines in Fig. 1, or it may be lowered so as to impinge on the surface of the ground with varying degrees of pressure, it being evident that by tensioning the flexible element 25-, the pressure on the surface engaged by the smoothing and packing element may be relieved.

Under the slightly modified construction illustrated in Fig. 5, the guide pulley 26 is replaced by a bell crank 35, one arm 0' which is connected by a flexible element 36 packing element, the other arm of the bell crank being connected with means whereby it may be tilted or actuated, as will be readily understood, no limitation being made to any specific lifting means for the smoothing and packing element.

In machines of this class it has been customary to employ a drag, flexibly connecte with the frame of the machine for the purpose of engaging the material issuing between the convergent rear ends of the scraper bars. A drag thus mounted or con-' nected is liable to lateral displacement, especially when working on slanting surfaces, and when it is necessary to turn the machine around such drags have been found to be obstructive and cumbersome. By the present invention the smoothing and packing element is spaced from the rear ends of the scraper bars, but it is supported rigidly with respect to the frame of the machine of which it may be regarded as constituting a part. It follows that when the said element has been adjusted to such position as is regarde particularly desirable the work at hand, it will remain in such position regardless of the movement of the machine with which it is connected. Thus, when it is desired to presentthe smoothing and packing element obliquely with respect to the machine for the purpose of causing the material engaged to move laterally in one direction, such position will be securely maintained, while on the other hand the smoothing and packing element may be presented transversely in the path of the material issuing between the scraper bars and maintained securely in such position when desired. The presence of the plurality of the bolt receiving apertures 28 in the supporting bars 19 also enables the distance between the smoothing and packing element and the rear ends 0 the scraper bars to be varied when desired.

Having thus described the invention, what is claimed as new, is 2 1. The combination with a road machine of the character described and including a wheel supported frame having side members and rearwardly convergent scraper bars supported by said frame, of a drag comprising a transverse trowel bar constituting a smoothing and packing element and rigi supporting bars rigidly connected with sai trowel bar adjacent to the ends thereof, and means for connecting the forward ends 0 the supporting bars with the side members of the frame to maintain the trowel bar in earth engaging position to the rearward o the scraper bars.

2. The combination with a road machine of the character described and including a wheel supported frame having side members and rearwardly convergent scraper bars supported by said frame, of a drag comprising a transverse trowel bar constituting a smoothing and packing element and rigid supporting bars rigidly connected with said trowel bar adjacent to the ends thereof, means for pivotally connecting the forwar ends of the supporting bars with the frame to maintain the trowel bar in earth engaging position to the rearward of the scraper bars, and means for lifting the trowel bar from engagement with the ground.

3. In a road machine, a wheel supported frame having sidebars, rearwardly convergent scraper bars supported by the frame, a smoothing and packing element, rigid supporting bars with which said element is rigidly connected, and means for adjustably connecting the supporting bars with the frame of the machine to permit the smoothing and packing element to be positioned at various angles, transversely, with respect to the frame.

l. In a road machine, a wheel supported frame having side bars, rearwardly convergent scraper bars carried by the frame, a smoothing and packing element comprising a bar member positioned transversely in rear of the frame, bar member with the frame including rigid supporting bars,'bolts connecting said bars pivotally and adjustably with the side bars means for connecting said of the frame, and convex washers interposed In testimony whereof I affix m y signature etween the trarne bars and the supportin 1n presence of tw 0 Witnesses. ars and ZIdJHStHI means for the sm0oth- T ing and compactiii g element whereby said NATHANIEL MONROE element may be supported in the path of Witnesses: material issuing between the rearward ends E. W. BOYD, of t e scraper bars. ALTA B. JONES.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

